First of all: Great game! Thanks for adding at abbandonia!
BUT: There is a bug in act IV!
I don't want to tell too much of the plot, but after some actions there appears the fortune of youth in the map in act IV. To walk to the fortune of youth, you have to use the camel in Djelibeybi. And there's the bug: you can't use the camel!
There is patch #3, which should fix the problem. The file is called dw2ptch3.zip, you can find it here:
http://www.lspace.org/games/discworld/files.html . The DOS version simply requires the replacement of the file DWB.EXE. Unfortunately, that doesn't work with the abandonia version of discworld 2.
But there is also another solution, as described in the readme file of the patch: Among several exe-files there is also a savegame-file (SG.1) included in the patch. This savegame called "Virtual Camel Restored!" starts at the beginning of act IV, but without bug! When the bug occurs in act IV, end the game, copy the file SG.1 to your save game directory, restart the game, load the new savegame and continue the game till end!
